package cn.readjava.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cache.Cache;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.interceptor.CacheErrorHandler;
import org.springframework.cache.interceptor.KeyGenerator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;

@Slf4j
@Configuration
@EnableCaching
public class RedisConfig extends CachingConfigurerSupport {

    @Value("${spring.redis.host}")
    private String host;

    @Value("${spring.redis.port}")
    private int port;

    @Value("${spring.redis.jedis.timeout}")
    private int timeout;

    @Value("${spring.redis.jedis.pool.max-idle}")
    private int maxIdle;

    @Value("${spring.redis.jedis.pool.max-wait}")
    private long maxWaitMillis;

    @Autowired
    private JedisConnectionFactory jedisConnectionFactory;
    //缓存管理器
    @Bean
    public CacheManager cacheManager() {
        // 初始化缓存管理器，在这里我们可以缓存的整体过期时间什么的，我这里默认没有配置
        log.info("初始化 -> [{}]", "CacheManager RedisCacheManager Start");
        RedisCacheManager.RedisCacheManagerBuilder builder = RedisCacheManager
                .RedisCacheManagerBuilder
                .fromConnectionFactory(jedisConnectionFactory);
        return builder.build();
    }

    @Bean
    public KeyGenerator keyGenerator() {
        return (target, method, params) -> {
            StringBuilder sb = new StringBuilder();
            sb.append(method.getName());
            for (Object obj : params) {
                sb.append(":" + String.valueOf(obj));
            }
            String rsToUse = String.valueOf(sb);
            return rsToUse;
        };
    }

    /**
     * 配置StringRedisTemplate实体
     * @return
     */
    @Bean
    public StringRedisTemplate stringRedisTemplate(JedisConnectionFactory jedisConnectionFactory) {
        StringRedisTemplate stringRedisTemplate = new StringRedisTemplate();
        stringRedisTemplate.setConnectionFactory(jedisConnectionFactory);
        return stringRedisTemplate;
    }
    @Bean
    public RedisTemplate<String, Object> redisTemplate(JedisConnectionFactory jedisConnectionFactory ) {
        //设置序列化
        Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<Object>(Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);
        // 配置redisTemplate
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<String, Object>();
        redisTemplate.setConnectionFactory(jedisConnectionFactory);
        @SuppressWarnings("rawtypes")
        RedisSerializer stringSerializer = new StringRedisSerializer();
        redisTemplate.setKeySerializer(stringSerializer); // key序列化
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer); // value序列化
        redisTemplate.setHashKeySerializer(stringSerializer); // Hash key序列化
        redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer); // Hash value序列化
        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }
    @SuppressWarnings("deprecation")
    @Bean
    JedisConnectionFactory jedisConnectionFactory() {
        log.info("Create JedisConnectionFactory successful");
        JedisConnectionFactory factory = new JedisConnectionFactory();
        factory.setHostName(host);
        factory.setPort(port);
        factory.setTimeout(timeout);
//        factory.setPassword(PropUtil.getStr("spring.redis.password"));
        return factory;
    }
    @Bean
    public JedisPool redisPoolFactory() {
        log.info("JedisPool init successful，host -> [{"+host+"}]；port -> [{"+port+"}]");
        JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
        jedisPoolConfig.setMaxIdle(8);
        jedisPoolConfig.setMaxWaitMillis(-1);
        JedisPool jedisPool = new JedisPool(jedisPoolConfig, host, port, timeout);
        return jedisPool;
    }
    @Bean
    public CacheErrorHandler errorHandler() {
        // 异常处理，当Redis发生异常时，打印日志，但是程序正常走
        log.info("初始化 -> [{}]", "Redis CacheErrorHandler");
        CacheErrorHandler cacheErrorHandler = new CacheErrorHandler() {

            public void handleCacheGetError(RuntimeException e, Cache cache, Object key) {
                log.error("Redis occur handleCacheGetError：key -> [{}]", key, e);
            }

            public void handleCachePutError(RuntimeException e, Cache cache, Object key, Object value) {
                log.error("Redis occur handleCachePutError：key -> [{}]；value -> [{}]", key, value, e);
            }

            public void handleCacheEvictError(RuntimeException e, Cache cache, Object key)    {
                log.error("Redis occur handleCacheEvictError：key -> [{}]", key, e);
            }

            public void handleCacheClearError(RuntimeException e, Cache cache) {
                log.error("Redis occur handleCacheClearError：", e);
            }
        };
        return cacheErrorHandler;
    }
    
    /*

    @Bean
    public JedisPool redisPoolFactory() {
        log.info("----------------------------");
        log.info("JedisPool注入成功");
        log.info("redis地址：" + host + ":" + port);
        log.info("----------------------------");
        JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
        jedisPoolConfig.setMaxIdle(maxIdle);
        jedisPoolConfig.setMaxWaitMillis(maxWaitMillis);

        JedisPool jedisPool = new JedisPool(jedisPoolConfig, host, port, timeout);

        return jedisPool;
    }*/
}